Flashcards
series and parallel circuits
Cards in this deck (8)
- 1Describe: a) the current b) potential difference c) resistance -in a SERIES circuita) the current is the same in each component
b) the total potential diff. is shared between the components
c) adding their resistances gives the total resistance - 2What is the total potential difference in a SERIES circuit?the total potential difference of cells in series is the sum of the potential differences of each cell
- 3Describe the total resistance in a SERIES circuit.the total resistance is equal to the sum of the resistance of each component
R (total) = R1 + R2 - 4What happens when you add more resistors in a series circuit?the total resistance increases because the current through the resistors is reduced
- 5Describe: a) the current b) potential difference -in a PARALLEL circuita) the total current is the sum of the currents through separate components
b) the p.d. across each component is the same - 6[ PARALLEL ] The bigger the resistance of the component--the smaller the current that will pass through that component
ie. the component with the biggest resistance passes the smallest current - 7How do you work out the current passing through each component?current = p.d. / resistance
- 8What happens when you add more resistors in a parallel circuit?adding more resistors in parallel decreases the total resistance
l
the total current through the resistors is increased and the total p.d. is unchanged
Information
- Description
- • 4.5: series circuits • 4.6: parallel circuits
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- Farha Idrees
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